Our Master was a man of sorrows; He was acquainted with grief; and those who suffer with Him will reign with Him. When the Lord appeared to Saul in his conversion, He did not purpose to show him how much good he should enjoy, but what great things he should suffer for His name. Suffering has been the portion of the people of God from the days of the martyr Abel. The patriarchs suffered for being true to God and obedient to His commandments. The great Head of the church suffered for our sake; His first apostles and the primitive church suffered; the millions of martyrs suffered, and the Reformers suffered. And why should we, who have the blessed hope of immortality, to be consummated at the soon appearing of Christ, shrink from a life of suffering? Were it possible to reach the tree of life in the midst of the Paradise of God without suffering, we would not enjoy so rich a reward for which we had not suffered. We would shrink back from the glory; shame would seize us in the presence of …
"He is despised and rejected of men; a man of sorrows, and acquainted with grief: and we hid as it were our faces from him; he was despised, and we esteemed him not."
EGW uses the exact phrases "man of sorrows" and "acquainted with grief" which are directly from Isaiah 53:3.
"If we suffer, we shall also reign with him: if we deny him, he also will deny us:"
EGW directly quotes and expands upon the idea presented in 2 Timothy 2:12. The connection is clear and intentional.
"For I will shew him how great things he must suffer for my name’s sake."
EGW explicitly refers to Saul's conversion and the suffering he would endure for Christ's name, directly echoing the message in Acts 9:16.
"When we began to present the light on the Sabbath question, we had no clearly defined idea of the third angel's message of Revelation 14:9-12 . The burden of our testimony as we came before the people was that the great second advent movement was of God, that the first and second messages had gone forth, and that the third was to be given. We saw that the third message closed with the words: “Here is the patience of the saints: here are they that keep the commandments of God, and the faith of Jesus.” And we as clearly saw as we now see that these prophetic words suggested a Sabbath reform; but as to what the worship of the beast mentioned in the message was, or what the image and the mark of the beast were, we had no defined position. 1T 78.2"
"And the third angel followed them, saying with a loud voice, If any man worship the beast and his image, and receive his mark in his forehead, or in his hand, The same shall drink of the wine of the wrath of God, which is poured out without mixture into the cup of his indignation; and he shall be tormented with fire and brimstone in the presence of the holy angels, and in the presence of the Lamb: And the smoke of their torment ascendeth up for ever and ever: and they have no rest day nor night, who worship the beast and his image, and whosoever receiveth the mark of his name. Here is the patience of the saints: here are they that keep the commandments of God, and the faith of Jesus."
Ellen White directly references Revelation 14:9-12 in this passage.